Anthropogenic impact by phenol in relation to the physico-chemical parameters of Bhopal Lower Lake (M. P)

This study deals with the physico-chemical parameters undertaken during November 2014 to October 2015 in lower lake of Bhopal. The paper deals with the variety and abundance of pollutants along with phenol present in the lake among the various parameters recorded the overall surface water temperature range 7.4 °C to 30.4 °C., air temperature range 7.8 °C to 40.7 °C; Turbidity index 6.35 to 7.50 (Secchi-disc transparency) Dissolved oxygen 5.1 to 8.5 mg L-1; pH ranged between 7.25- 8.90; Electric Conductivity 360 to 395 μScm-1.; Total Alkalinity 130 to 150 mg L-1,Chloride values 18.3 to 20.30 mg L-1,Total Hardness 130 to 190 mg L-1; Ammonical Nitrogen 50.21to 72.84 μg L-1; Nitrate Nitrogen 130.31 to160.1 μg L-1; Nitrite Nitrogen 3.90 to 21.36 μg L-1.; and Phosphate Phosphorous 1.40 to 12.12 μg L-1.All the above parameters show that the pollution load including phenol are increasing due to anthropogenic pressure and climatic factors which results the eutrophic condition of the lake, so immediate remedial measures should be taken for its protection from further pollution. Use of phenolic compounds which directly enter in lake effects the fish diversity. The entry of these compounds not effects only the fish diversity but also effects on physio-chemical parameters of the lake.